US5390893A - Mounting for cylinders and drums in printing machines - Google Patents

Mounting for cylinders and drums in printing machines Download PDF

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Publication number
US5390893A
US5390893A US08/109,084 US10908493A US5390893A US 5390893 A US5390893 A US 5390893A US 10908493 A US10908493 A US 10908493A US 5390893 A US5390893 A US 5390893A
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US
United States
Prior art keywords
collar
cylinder
journal
bearing
centering plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/109,084
Inventor
Harald Bayer
Klemens Kemmerer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Assigned to MAN ROLAND DRUCKMASCHINEN AG reassignment MAN ROLAND DRUCKMASCHINEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAYER, HARALD, KEMMERER, KLEMENS
Application granted granted Critical
Publication of US5390893A publication Critical patent/US5390893A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/545—Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing

Definitions

  • the present invention relates to a rotatable mounting for cylinders and drums in printing machines having a pair of spaced-apart side frames.
  • DE 278,306 A1 describes a similar mounting which possesses a flange connected firmly to the frame.
  • the flange receives the cylinder journal in a bearing.
  • a further bearing is arranged on the flange and carries the driving wheel.
  • the driving wheel is coupled to the cylinder journal via a coupling.
  • a bearing known from German Patent Specification 674,128 makes it possible for the cylinder to be easily exchangeable. Additional coupling members for releasable connection to the driving wheel are necessary on the cylinder journal.
  • German Patent Specification 755,282 discloses a cylinder mounting having a fully floating axle which carries the cylinder.
  • the cylinder is flanged together with sleeves which are mounted in the frame wall and by which the fully floating axle is guided.
  • the sleeve arranged on the drive side at the same time carries the driving wheel.
  • a further mounting is known from DE 3,528,846 A1.
  • the cylinder shaft is connected rigidly to the first frame wall. Furthermore, the cylinder shaft is received in a concentrically arranged bushing which is guided through rotatably via a bearing bore in the second frame wall. The bushing is connected to the cylinder on the end face and the free shaft end carries a driving wheel.
  • German Auslegeschrift 1,015,452 serves for reducing the flexion f the cylinder, but involves a high outlay in terms of assembly and dismounting. Differences in the bearing play of the bushing and ball bearing have an adverse effect.
  • the object of the invention is, therefore, to eliminate the disadvantages mentioned above in the state of the art.
  • the object is achieved by providing an easy to assemble mounting for the cylinders and drums of printing machines which at the same time reduces journal flexing and guarantees a high degree of rigidity in the drive wheel train.
  • the stub journal of a cylinder is received in the collar of a driving wheel.
  • the collar is rotatably supported in a bearing disposed in one of the press side walls and the collar is connected to the journal by means of connecting elements including a centering plate, locating pins and appropriate screws.
  • the mounting according to the invention is suitable for printing machines both with a continuous and with an uncoupled wheel train. It can be used for cylinders or drums of multiple size, thus, for example, for cylinders of double size with a driving wheel of double size.
  • the solution according to the invention brings about not only reduced flexion, but also especially high rigidity.
  • the diameter ratio of cylinder journal to cylinder barrel can be made more favorable.
  • the force flux or moment flux is improved by the direct mounting of the driving wheel in the frame.
  • the present mounting for cylinders or drums can be achieved by the use of plain or rolling bearings.
  • the present solution is favorable for assembly.
  • the use of short cylinder journals (stubs) makes it possible to assemble and dismount the cylinders and drums without swinging down the side-frame walls.
  • FIG. 1 is a fragmentary and partial sectional view of the cylinder mounting on the frame wall located on the drive side of a printing press.
  • FIG. 1 a portion of the drive end of a printing press cylinder 1 is shown.
  • a short or stub journal 2 at the end of the cylinder 1 is received concentrically in the collar 3 of a driving gear or wheel 4.
  • the driving gear 4 and the integral collar 3 are formed with a passage bore for receiving the stub journal 2 at the end of the press cylinder.
  • the collar 3 passes through a bore in one of a pair of side frames 5 of the printing press such that the driving gear 4 is disposed outside the press side wall for engagement by other gear elements in the press drive train.
  • the collar 3 forms an integral unit with the driving wheel 4 and the collar 3 is rotatably supported in a bearing 6 disposed in the bore of the press side frame 5.
  • the bearing 6 is a relatively simple fixed bearing such as a radial roller bearing with two axial thrust roller bearings arranged respectively on the inside an on the outside of the frame wall 5.
  • a centering plate 9 is disposed in the collar 3 on the end face of the journal 2 and is connected to the collar 3 and the journal 2 by means of pins 7 and screws 8.
  • the centering plate 9 serves for positioning the cylinder 1 and for transmitting torque from the driving wheel to the cylinder 1.
  • the length of the cylinder, including the stub journal 2 corresponds to the clearance width between the spaced apart press frame walls 5 plus half the frame thickness per frame wall 5.
  • the second journal 2 of the cylinder 1 is received in an axially movable journal bearing.

Abstract

An easy to assemble mounting for the cylinders and drums of printing machines is provided which at the same time reduces journal flexing and guarantees a high degree of rigidity in the drive wheel train. The stub journal of a cylinder is received in the collar of a driving wheel. The collar is rotatably supported in a bearing disposed in one of the press side walls and the collar is connected to the journal by means of connecting elements including a centering plate, locating pins and appropriate screws.

Description

FIELD OF THE INVENTION
The present invention relates to a rotatable mounting for cylinders and drums in printing machines having a pair of spaced-apart side frames.
BACKGROUND OF THE INVENTION
A mounting of this general type is known, for example, from German Auslegeschrift 1,015,452.
DE 278,306 A1 describes a similar mounting which possesses a flange connected firmly to the frame. The flange receives the cylinder journal in a bearing. A further bearing is arranged on the flange and carries the driving wheel. The driving wheel is coupled to the cylinder journal via a coupling.
A bearing known from German Patent Specification 674,128 makes it possible for the cylinder to be easily exchangeable. Additional coupling members for releasable connection to the driving wheel are necessary on the cylinder journal.
German Patent Specification 755,282 discloses a cylinder mounting having a fully floating axle which carries the cylinder. The cylinder is flanged together with sleeves which are mounted in the frame wall and by which the fully floating axle is guided. The sleeve arranged on the drive side at the same time carries the driving wheel.
A further mounting is known from DE 3,528,846 A1. Here, the cylinder shaft is connected rigidly to the first frame wall. Furthermore, the cylinder shaft is received in a concentrically arranged bushing which is guided through rotatably via a bearing bore in the second frame wall. The bushing is connected to the cylinder on the end face and the free shaft end carries a driving wheel.
The above-mentioned solutions are primarily concerned with the improved assembly and dismounting of cylinders and drums in printing machines.
German Auslegeschrift 1,015,452 serves for reducing the flexion f the cylinder, but involves a high outlay in terms of assembly and dismounting. Differences in the bearing play of the bushing and ball bearing have an adverse effect.
An easy-to-assemble solution, which reduces the flexion and which guarantees the necessary rigidity in the wheel train, is thus not achieved, particularly where cylinders/drums of multiple size are concerned.
OBJECTS AND SUMMARY OF THE INVENTION
The object of the invention is, therefore, to eliminate the disadvantages mentioned above in the state of the art.
The object is achieved by providing an easy to assemble mounting for the cylinders and drums of printing machines which at the same time reduces journal flexing and guarantees a high degree of rigidity in the drive wheel train. The stub journal of a cylinder is received in the collar of a driving wheel. The collar is rotatably supported in a bearing disposed in one of the press side walls and the collar is connected to the journal by means of connecting elements including a centering plate, locating pins and appropriate screws.
The mounting according to the invention is suitable for printing machines both with a continuous and with an uncoupled wheel train. It can be used for cylinders or drums of multiple size, thus, for example, for cylinders of double size with a driving wheel of double size. As a result of the preferred arrangement as a fixed bearing on the drive side, the solution according to the invention brings about not only reduced flexion, but also especially high rigidity. The diameter ratio of cylinder journal to cylinder barrel can be made more favorable. The force flux or moment flux is improved by the direct mounting of the driving wheel in the frame.
The present mounting for cylinders or drums can be achieved by the use of plain or rolling bearings.
Because the axial length of the cylinder or drum is at most the clearance width between the frame walls plus double the frame thickness (first and second frame), the present solution is favorable for assembly. The use of short cylinder journals (stubs) makes it possible to assemble and dismount the cylinders and drums without swinging down the side-frame walls.
The solution according to the invention will be explained in more details by means of an exemplary embodiment.
These and other features and advantages of the invention will be more readily apparent upon reading the following description of a preferred exemplified embodiment of the invention and upon reference to the accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a fragmentary and partial sectional view of the cylinder mounting on the frame wall located on the drive side of a printing press.
While the invention will be described and disclosed in connection with certain preferred embodiments and procedures, it is not intended to limit the invention to those specific embodiments. Rather it is intended to cover all such alternative embodiments and modifications as fall within the spirit and scope of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Turning now to FIG. 1 in more detail, a portion of the drive end of a printing press cylinder 1 is shown. A short or stub journal 2 at the end of the cylinder 1 is received concentrically in the collar 3 of a driving gear or wheel 4. Pursuant to one aspect of the invention, the driving gear 4 and the integral collar 3 are formed with a passage bore for receiving the stub journal 2 at the end of the press cylinder. The collar 3 passes through a bore in one of a pair of side frames 5 of the printing press such that the driving gear 4 is disposed outside the press side wall for engagement by other gear elements in the press drive train.
According to the invention the collar 3 forms an integral unit with the driving wheel 4 and the collar 3 is rotatably supported in a bearing 6 disposed in the bore of the press side frame 5. In the illustrative embodiment, the bearing 6 is a relatively simple fixed bearing such as a radial roller bearing with two axial thrust roller bearings arranged respectively on the inside an on the outside of the frame wall 5.
In further accordance with the invention, from outside the press frame side wall 5, a centering plate 9 is disposed in the collar 3 on the end face of the journal 2 and is connected to the collar 3 and the journal 2 by means of pins 7 and screws 8. The centering plate 9 serves for positioning the cylinder 1 and for transmitting torque from the driving wheel to the cylinder 1.
It is another feature of the invention that the length of the cylinder, including the stub journal 2, corresponds to the clearance width between the spaced apart press frame walls 5 plus half the frame thickness per frame wall 5. In the second frame wall 5 on he press operator's side (not shown), the second journal 2 of the cylinder 1 is received in an axially movable journal bearing.

Claims (11)

We claim as our invention:
1. Apparatus for rotatably mounting the driven end of a printing press cylinder in one of a pair of spaced apart press side frames comprising, in combination,
a bearing and means defining an aperture in said one side frame for receiving and supporting said bearing in close-fitting relation therein,
a driving gear having a hollow collar extending coaxially therefrom, said collar having inner and outer peripheral surfaces with said outer peripheral surface dimensioned for close-fitting insertion in and rotational support by said bearing,
a journal on the driven end of said printing press cylinder, said journal dimensioned for close-fitting insertion in and support by said inner peripheral surface of said collar, and
means for positively securing said collar to said journal, said securing means being selectively engageable and releasable.
2. Apparatus as defined in claim 1 wherein said cylinder has a journal at each end dimensioned for close-fitting insertion in and support by said inner peripheral surface of said collar and said securing means is selectively engageable and releasable from each of said journals.
3. Apparatus as defined in claim 2 wherein the axial length of said cylinder including said journals is not greater than the width between said side frames plus double said side frame thickness.
4. Apparatus as defined in claim 1, including a centering plate concentrically arranged within said collar of said driving gear and positively connected to said journal of said cylinder.
5. Apparatus as defined in claim 2 including a centering plate, said centering plate being concentrically arranged within said collar of said driving gear and being positively connected through said collar to either end of said cylinder.
6. Apparatus as defined in claim 1 wherein said bearing is a plain bearing.
7. Apparatus as defined in claim 1 wherein said bearing is a roller bearing.
8. Apparatus as defined in claim 4 including means for aligning said centering plate with said journal of said cylinder.
9. Apparatus as defined in claim 5 including means for aligning said centering plate with either end of said cylinder.
10. Apparatus as defined in claim 1 including axial thrust bearings mounted on said outer periphery of said collar, one on either side if said bearing.
11. Apparatus as defined in claim 10 including a thrust ring coaxially surrounding said outer periphery of said collar and interposed between the end of said cylinder and the inner one of said axially thrust bearings.
US08/109,084 1992-08-21 1993-08-19 Mounting for cylinders and drums in printing machines Expired - Fee Related US5390893A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4227643 1992-08-21
DE4227643A DE4227643C2 (en) 1992-08-21 1992-08-21 Bearing for cylinders and drums in printing machines

Publications (1)

Publication Number Publication Date
US5390893A true US5390893A (en) 1995-02-21

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US08/109,084 Expired - Fee Related US5390893A (en) 1992-08-21 1993-08-19 Mounting for cylinders and drums in printing machines

Country Status (5)

Country Link
US (1) US5390893A (en)
EP (1) EP0586863B1 (en)
JP (1) JP2758346B2 (en)
AT (1) ATE135633T1 (en)
DE (2) DE4227643C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406143C2 (en) * 1994-02-25 1997-03-27 Roland Man Druckmasch Bearing for cylinders and drums in printing machines
DE19531840B4 (en) * 1994-03-01 2005-10-06 Heidelberger Druckmaschinen Ag Stiffening system for rotary printing-press frame - comprises cross-member passing through printing cylinder and bearings between sidewalls
JP3616604B2 (en) 2002-03-08 2005-02-02 株式会社東京機械製作所 Printing cylinder bearing device
DE102010000809B4 (en) * 2009-07-13 2014-10-30 manroland sheetfed GmbH Compact axial-radial bearing
DE102012206380B4 (en) 2012-04-18 2015-02-05 Aktiebolaget Skf Rolling bearing assembly for a printing press

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674128C (en) * 1935-05-23 1939-04-05 Dresden Leipziger Schnellpress Storage of an image cylinder, especially for rotogravure printing machines
DE755282C (en) * 1942-04-03 1952-08-14 Maschf Augsburg Nuernberg Ag Storage of the blanket cylinder of a rotary rubber printing machine
US2752632A (en) * 1952-02-19 1956-07-03 Hedwin Corp Mold for thermoplastic materials
DE1015452B (en) * 1955-02-11 1957-09-12 Maschf Augsburg Nuernberg Ag Storage of drums for printing machines, especially the intermediate drum of two-color offset machines
US3889334A (en) * 1972-08-01 1975-06-17 Beloit Corp Controlled deflection roll drive
DE2507677A1 (en) * 1975-02-18 1976-08-26 Escher Wyss Ag ROLL FOR A ROLLING MILL
US4408526A (en) * 1981-03-30 1983-10-11 M.A.N.--Roland Druckmaschinen Aktiengesellschaft No-play gear drive for printing machines
US4691421A (en) * 1986-07-09 1987-09-08 J. M. Voith Gmbh' Press roll with adjustable sag
US4829842A (en) * 1987-02-12 1989-05-16 J.M. Voith Gmbh Spur gearing for the driving of a roller shell
US4837907A (en) * 1987-08-20 1989-06-13 Beloit Corporation Self-loading controlled deflection roll
US4883369A (en) * 1987-03-25 1989-11-28 Dujardin Montbard Somenor Roll mounting device with a cooled bearing
US4910842A (en) * 1986-11-14 1990-03-27 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Roll for the pressure treatment of webs of material
US4962577A (en) * 1986-03-13 1990-10-16 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Work roll with improved support and lubricating system for an hydraulically supported roll
US5128715A (en) * 1990-03-19 1992-07-07 Fuji Xerox Co., Ltd. Print cartidge and image forming apparatus employing the same
US5132728A (en) * 1989-05-19 1992-07-21 Hitachi, Ltd. Drum driving unit of electrophotography printer
US5174002A (en) * 1990-10-23 1992-12-29 Eduard Kusters Maschinenfabrik Gmbh & Co Kg Deflection-controlled cylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1675088A1 (en) * 1968-01-18 1970-12-10 Riggs & Lombard Inc Guide roller for web-shaped material and treatment device built up with it
DD231036A1 (en) * 1984-09-20 1985-12-18 Polygraph Leipzig ARRANGEMENT OF CYLINDERS AND DRUMS IN PRINTING MACHINES
DD278306A1 (en) * 1988-12-22 1990-05-02 Polygraph Leipzig STORAGE OF CYLINDERS AND DRUMS IN PROCESSING MACHINES

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674128C (en) * 1935-05-23 1939-04-05 Dresden Leipziger Schnellpress Storage of an image cylinder, especially for rotogravure printing machines
DE755282C (en) * 1942-04-03 1952-08-14 Maschf Augsburg Nuernberg Ag Storage of the blanket cylinder of a rotary rubber printing machine
US2752632A (en) * 1952-02-19 1956-07-03 Hedwin Corp Mold for thermoplastic materials
DE1015452B (en) * 1955-02-11 1957-09-12 Maschf Augsburg Nuernberg Ag Storage of drums for printing machines, especially the intermediate drum of two-color offset machines
US3889334A (en) * 1972-08-01 1975-06-17 Beloit Corp Controlled deflection roll drive
DE2507677A1 (en) * 1975-02-18 1976-08-26 Escher Wyss Ag ROLL FOR A ROLLING MILL
US4408526A (en) * 1981-03-30 1983-10-11 M.A.N.--Roland Druckmaschinen Aktiengesellschaft No-play gear drive for printing machines
US4962577A (en) * 1986-03-13 1990-10-16 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Work roll with improved support and lubricating system for an hydraulically supported roll
US4691421A (en) * 1986-07-09 1987-09-08 J. M. Voith Gmbh' Press roll with adjustable sag
US4910842A (en) * 1986-11-14 1990-03-27 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Roll for the pressure treatment of webs of material
US4829842A (en) * 1987-02-12 1989-05-16 J.M. Voith Gmbh Spur gearing for the driving of a roller shell
US4883369A (en) * 1987-03-25 1989-11-28 Dujardin Montbard Somenor Roll mounting device with a cooled bearing
US4837907A (en) * 1987-08-20 1989-06-13 Beloit Corporation Self-loading controlled deflection roll
US5132728A (en) * 1989-05-19 1992-07-21 Hitachi, Ltd. Drum driving unit of electrophotography printer
US5128715A (en) * 1990-03-19 1992-07-07 Fuji Xerox Co., Ltd. Print cartidge and image forming apparatus employing the same
US5174002A (en) * 1990-10-23 1992-12-29 Eduard Kusters Maschinenfabrik Gmbh & Co Kg Deflection-controlled cylinder

Also Published As

Publication number Publication date
DE59301946D1 (en) 1996-04-25
JPH06155704A (en) 1994-06-03
DE4227643A1 (en) 1994-02-24
ATE135633T1 (en) 1996-04-15
EP0586863B1 (en) 1996-03-20
DE4227643C2 (en) 1996-01-11
EP0586863A1 (en) 1994-03-16
JP2758346B2 (en) 1998-05-28

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